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Platform LSF Reference Version 6.2

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Parameters
Platform LSF Reference
520
Default
Undefined. If LSB_INTERACT_MSG_INTVAL is set to an incorrect value, the default
update interval is 60 seconds.
See also
LSB_INTERACT_MSG_ENH
LSB_IRIX_NODESIZE (OBSOLETE)
LSB_IRIX_NODESIZE is obsolete. It is ignored if set.
LSB_KEEP_SYSDEF_RLIMIT
Syntax LSB_KEEP_SYSDEF_RLIMIT=y | n
Description
If resource limits are configured for a user in the SGI IRIX User Limits Database
(ULDB) domain specified in LSF_ULDB_DOMAIN, and there is no domain default,
the system default is honored.
If LSF_KEEP_SYSDEF_RLIMIT=n, and no resource limits are configured in the
domain for the user and there is no domain default, LSF overrides the system default
and sets system limits to unlimited.
Default
90 seconds
LSB_JOB_CPULIMIT
Syntax LSB_JOB_CPULIMIT=y | n
Description
Determines whether the CPU limit is a per-process limit enforced by the OS or whether
it is a per-job limit enforced by LSF:
◆
The per-process limit is enforced by the OS when the CPU time of one process of
the job exceeds the CPU limit.
◆
The per-job limit is enforced by LSF when the total CPU time of all processes of
the job exceed the CPU limit.
This parameter applies to CPU limits set when a job is submitted with
bsub -c, and to
CPU limits set for queues by CPULIMIT in
lsb.queues.
The setting of LSB_JOB_CPULIMIT has the following effect on how the limit is
enforced:
◆
LSF-enforced per-job limit—When the sum of the CPU time of all processes of a
job exceed the CPU limit, LSF sends a SIGXCPU signal (where supported by the
operating system) from the operating system to all processes belonging to the job,
then SIGINT, SIGTERM and SIGKILL. The interval between signals is 10 seconds
by default. The time interval between SIGXCPU, SIGINT, SIGKILL, SIGTERM
can be configured with the parameter JOB_TERMINATE_INTERVAL in
lsb.params.
SIGXCPU is not supported by Windows.
When LSB_JOB_CPULIMIT is LSF-enforced per-job limit OS-enforced per-process limit
y Enabled Disabled
n Disabled Enabled
undefined Enabled Enabled